Railway-car truck



Dec. 25, 1928.

J. F. O'CONNOR RAILWAY CAR TRUCK Filed May 21, 1927 Patented Dec. 25, 1928 UNITED STATES 1,696,322 N OFFICE}.

PATE

JOHN F. oconnon, or CHICAGO, ILLINOIS, ASSIGNOR 2110 w. H. Minna, Inc, or

. CHICAGO, ILLINOIS, A conronarron or DELAWARE.

RAILWAY-CAR TRUCK.

Application filed May 21,

in proper alignment and prevent excessive tilting of the box about the axis of the ]O11lnal.

Other and further objects of the invention will more fully and clearly appear from the description and claims hereinafter followin the drawings forming a part of the specification, Figure 1 is a side elevational view of a part of a railway car truck showlng the invention in connection therewith. And Figure 2'is a horizontal sectional view of the construction corresponding substantially to the line 22 of Figure 1.

As shown in the drawings, the frame proper is of the usual rectangular formation including box-shaped side members, one of which is indicated by the reference character 10. Secured centrall of the truck frame are t5 the usual hangers indicated at 11 which swingably carry the usual support 12 and springs 13, the springs in turn supporting the truck bolster 14 in the usual manner;

Secured to the frame proper of the truck to are pedestal members, these being usually four or six in number, depending upon whether a four or six-wheeled truck is ut1- lized. As contemplated by this invention, the pedestals are of special construction, only one :5 of the pedestal members being lllustrated 111 the drawings, and indicated broadly by the reference character 15, it being understood that all of the pedestals, together with the associated parts hereinafter described, are

an identical in construction. Each pedestal member 15 is made of longitudinally extending transversely spaced walls 1616, forming jaws 17 and 18, and connecting portions 19, one of the latter fitting upon each side of the frame member 10. The spaced walls 7 in its pedestal in order to maintain the same I 1927. Serial No. 193343.

1616 are connected together by a horizontally disposed web'2O secured to the frame member 10 by'means of a bolt 21, and the outer connecting portion 19 of the 'wall 1616.is secured to the frame 10 by bolts 22. The spaced walls 16l6-are" further connected adjacent the inner vertical edgesof thejaws by means'of integral webs 23 and 24, wh ch form vertically disposed journal box guide faces; the webs at their lower ends are turned outwardly as indicated at 25'-25, and secured to said Webs by means of bolts is a cross bar 26 adapted to detachably hold the ournal box in place.

tween the guide faces provided by the webs 23 and 2l, and has the usual flanges 2828 which bear upon the opposite sides of the aws of the pedestal member to prevent lat eral displacement of the box. The top wall of the journal box is provided with 'a rib 290 adapted for co-operation with a pressure transmitting member hereinafter described. The journal box is adapted to slide vertically between the jaws of the pedestal, and due to the factthat in practice the pedestals and journal boxes vary somewhat in size, considerable clearance is allowed betweenthe side walls of the journal box and the guide faces of the pedestal, which permits a certain amount of tilting of the journal box, causmg excessive wear of the guides." It is therefore important to provide means of the character now to be described for preventing ex-. cessive tilting of the box.

The jaw 18 of the pedestal is of somewhat greater width than the jaw 17, and at its lowenend has an extension 29 forming a cup-shaped seat 30 adapted to accommodate the lower end of a coiled spring 31. Seated upon the upper end of the coiled .spring is a follower 32, on the upper wall of which 18 formed a rib 33. A short bar34 is disposed between the walls 16l6, and pivotally mounted upon a pivot pin 35 supported in said walls, the outer end of the bar being provided with a groove 36 which fits over the rib 33 on the follower 32. The guide web 2 1 is cut out as indicated at 37 and the inner end of the bar 34; extends to a position over the top wall of the journal box 27. The inner end of the bar is provided with a groove 38 fitting over the rib 290 on the top wall of the journal box, and bears thereon.

In operation, assuming an undulation in The journal box 27 is slidably disposed be-' the track causes vertical movement of the journal box 27, this movement will be transmitted to the inner end of the bar 3 1-, which moving about the pivot 35 con' presses the spring 31. During this movement of the bar, because of the connection of the inner end with the journal box, the journal box is slightly tilted in a clock-wise direction, this being permitted by the clearance usually provided between the side walls of the journal box and theguide faces of the pedestal. When the journal box returns to its normal Josition, the pivoted bar 31 guides the same rom its slightly tilted position and normally holds the journal box in vertical alignment with the guide faces of the pedestals, thereby doing away with any possibility of excessive tilting'of the journal box, or of the journal box assuming a permanently tilted condition.

lVhile I have herein shown and described what- I consider the preferred manner of carrying out the invention, the same is merely illustrative, and I contemplate all changes and modifications which come within the scope of the claims appended hereto.

I claim:

1. In a; truck of the character described. the combination with a frame having a pedestal member thereon; of a journal box vertically movable between the jaws of said pedestal; and a bar pivotally mounted on said pedestal and having one end bearing on and movably connected to said journal box; and yieldable means interposed between the opposite end of said bar and a fixed abutment on said pedestal.

2. In a truck of the character described, the combination with a frame; of a pedestal member mounted thereon having jaws; a bar pivoted between its ends and rigidly supported with respect to said frame, said bar having one end connected to said journal box to guide the journal box in its movement and transmit the load to said journal box; and yieldable means interposed between the free end of said equalizer bar and a supporting member fixed with reference to said frame.

3. In a truck of the character described, the combination with a frame; of a pedestal member having spaced jaws rigidly connected to said frame; a journal box slidably mounted between the jaws of said pedestal member; a transmitting member pivotally mounted on one jaw of said pedestal and having one end movablv connected to the top wall of said journal )ox bearing thereon an extension rigidly connected with said pedestal member; and yieldable means interposed between said extension and the free end of said transmitting member.

4. In a car truck, the combination with a truck frame; of a pedestal member fixed to the truck frame, said pedestal member having spaced guide jaws forming a guideway therebetween, one of said jaws having abutment means thereon; a journal box movable vertically between said jaws in raid guideway; a pressure transmitting member; means for guidin said pressure transmitting memher in a d efinite path, said pressure transmitting member being interengaged with said journal box to center the same between said jaws; and means interposed between said abutment and pressure transmitting member foryieldingly opposing movement of thepressure transmitting member.

In witness that I claim the foregoing I have hereunto subscribed my name this 17th day of May, 1927.

JOHN F. OCONNOR. 

